Extended Data Fig. 8: Electron microscopy analysis of Au@Pd/C catalyst after one use in the oxidation of HMF.
From: Au–Pd separation enhances bimetallic catalysis of alcohol oxidation

a, b, Representative complementary pair of BF- and HAADF-STEM micrographs showing metal nanoparticle size and spatial distribution. c–e, Atomic resolution HAADF-STEM micrographs of particles. The yellow arrows in e highlight certain atomic columns that appear lower in contrast, indicating some alloying of Pd with the Au matrix. f, A representative XEDS spectrum obtained from a typical nanoparticle, showing the presence of both Au and Pd.